C/2003 A2 (Gleason)

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C/2003 A2 (Gleason) is a long-period comet discovered on January 10, 2002 by Arianna E. Gleason of the Lunar and Planetary Laboratory using the Spacewatch II telescope at the Kitt Peak National Observatory.[1] It has a heliocentric semimajor axis of -1641 AU and reached its perihelion of 11.43 AU on November 4, 2003.[2] C/2003 A2 (Gleason) was the first comet discovered with a perihelion beyond 10 AU.[3]


  1. ^ "IAUC 8049: C/2003 A2; 2003I; 2003H". Central Bureau for Astronomical Telegrams. Retrieved 3 June 2019.
  2. ^ "C/2003 A2 (Gleason)". JPL Small-Body Database Browser. Retrieved 3 June 2019.
  3. ^ Fernandez, Yan. "List of Jupiter-Family and Halley-Family Comets". Retrieved 1 June 2019.